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Ontario

$213+ Cheap flights from Kailua-Kona to Ontario (KOA - ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/26. Fares are subject to change and may not be available on all flights or dates of travel.
KOA — ONT
May 26 — Jun 21
Tue 5/26
Tue 6/2
1 adult, Economy
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Cheap flight deals from Kailua-Kona to Ontario

Cheapest flights from Kailua-Kona to Ontario
Explore the most affordable flight options available from Kailua-Kona to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 26, 2026.

This Alaska Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1810:51 am
KOA
-
ONT
1 stop7h 54m
Multiple Airlines
Tue 8/257:20 am
ONT
-
KOA
1 stop8h 23m
Multiple Airlines
Deal found 4/21$417
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/138:50 pm
KOA
-
ONT
1 stop11h 22m
Delta
Sun 5/246:45 am
ONT
-
KOA
1 stop13h 52m
Delta
Deal found 4/22$434
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/158:50 pm
KOA
-
ONT
2 stops16h 27m
Delta
Sun 5/246:45 am
ONT
-
KOA
1 stop13h 52m
Delta
Deal found 4/22$440
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/168:50 pm
KOA
-
ONT
2 stops16h 27m
Delta
Sun 5/246:45 am
ONT
-
KOA
1 stop13h 52m
Delta
Deal found 4/22$446
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/138:50 pm
KOA
-
ONT
1 stop11h 22m
Delta
Sat 5/236:45 am
ONT
-
KOA
1 stop13h 52m
Delta
Deal found 4/22$469
This Kiwi.com deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2810:16 am
KOA
-
ONT
1 stop9h 01m
Multiple Airlines
Wed 6/35:57 pm
ONT
-
KOA
1 stop19h 59m
Multiple Airlines
Deal found 4/25$474
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/158:50 pm
KOA
-
ONT
2 stops12h 29m
Delta
Sat 5/236:45 am
ONT
-
KOA
1 stop13h 52m
Delta
Deal found 4/22$475
This Alaska Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/99:19 pm
KOA
-
ONT
1 stop10h 55m
Alaska Airlines
Tue 7/142:05 pm
ONT
-
KOA
1 stop11h 05m
Alaska Airlines
Deal found 4/22$479
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/168:50 pm
KOA
-
ONT
2 stops16h 27m
Delta
Mon 5/256:45 am
ONT
-
KOA
1 stop13h 52m
Delta
Deal found 4/22$481
This Kiwi.com deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/510:30 am
KOA
-
ONT
1 stop7h 40m
Multiple Airlines
Tue 5/1210:39 am
ONT
-
KOA
1 stop12h 13m
Multiple Airlines
Deal found 4/24$495
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2410:45 pm
KOA
-
ONT
1 stop10h 31m
Delta
Mon 1/46:00 am
ONT
-
KOA
1 stop11h 45m
Delta
Deal found 4/22$498
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/118:50 pm
KOA
-
ONT
1 stop12h 45m
Delta
Sun 5/246:45 am
ONT
-
KOA
1 stop13h 52m
Delta
Deal found 4/22$500

Find flight deals from Kailua-Kona to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Kailua-Kona (KOA) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$417
(Alaska Airlines)

One-way from

$213
(Alaska Airlines)

Popular in

June

Cheapest in

February

Average price

$416
Provider with most accurate pricing for Kona Intl-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Kona Intl-Ontario flights.
Search Deals
From Kona Intl to Ontario
Search Deals
One-way flight from Kona Intl to Ontario
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($56 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kailua-Kona to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 26, 2026.
Use the filters below to find and compare flights from Kailua-Kona to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Kailua-KonaOntario

KOA - ONT

KOAONT

Kona Intl

Tue 8/18

10:51 am-9:45 pm

1 stop7h 54m

Ontario

Tue 8/25

7:20 am-12:43 pm

1 stop8h 23m

$417

Kailua-KonaOntario

KOA - ONT

KOAONT

Kona Intl

Wed 5/27

11:55 am-10:37 pm

1 stop7h 42m

Ontario

Wed 6/3

1:50 pm-9:45 pm

1 stop10h 55m

$434

Kailua-KonaOntario

KOA - ONT

KOAONT

Kona Intl

Thu 9/3

10:50 pm-12:12 pm

1 stop10h 22m

Ontario

Tue 9/8

6:00 am-10:51 am

1 stop7h 51m

$500

Kailua-KonaOntario

KOA - ONT

KOAONT

Kona Intl

Wed 9/2

12:04 pm-10:58 pm

1 stop7h 54m

Ontario

Tue 9/8

1:44 pm-7:35 pm

1 stop8h 51m

$500

Kailua-KonaOntario

KOA - ONT

KOAONT

Kona Intl

Sat 5/9

8:50 pm-11:12 am

1 stop11h 22m

Ontario

Sun 5/17

6:45 am-5:37 pm

1 stop13h 52m

$509

Kailua-KonaOntario

KOA - ONT

KOAONT

Kona Intl

Sat 5/16

8:50 pm-4:17 pm

2 stops16h 27m

Ontario

Tue 5/26

6:45 am-5:37 pm

1 stop13h 52m

$513

Kailua-KonaOntario

KOA - ONT

KOAONT

Kona Intl

Wed 5/6

8:50 pm-11:12 am

1 stop11h 22m

Ontario

Sun 5/17

6:45 am-5:37 pm

1 stop13h 52m

$520

Kailua-KonaOntario

KOA - ONT

KOAONT

Kona Intl

Fri 8/28

10:50 pm-12:12 pm

1 stop10h 22m

Ontario

Fri 9/4

6:00 am-10:49 am

1 stop7h 49m

$536

Kailua-KonaOntario

KOA - ONT

KOAONT

Kona Intl

Fri 5/8

8:50 pm-11:12 am

1 stop11h 22m

Ontario

Tue 5/19

6:45 am-5:37 pm

1 stop13h 52m

$544

Kailua-KonaOntario

KOA - ONT

KOAONT

Kona Intl

Mon 5/18

12:02 pm-10:59 pm

1 stop7h 57m

Ontario

Mon 5/25

1:50 pm-9:45 pm

1 stop10h 55m

$544

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

Showing 1-10 of 22 resultsSorted by cheapest first
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Compare providers for flights from Kailua-Kona to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Kailua-Kona to Ontario in April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Kailua-Kona-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Kailua-Kona-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Kailua-Kona-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Kailua-Kona-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Kailua-Kona-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Kailua-Kona to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Kailua-Kona with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Kailua-Kona to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Kailua-Kona to Ontario?

    Departing from Kailua-Kona to Ontario will take you 7h 42m. Airlines will cover a distance of 2547 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Kailua-Kona to Ontario that include hotel bookings?

    Yes. In addition to deals on Kailua-Kona to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Kailua-Kona to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kailua-Kona to Ontario.

  • Can I find deals for business class flights from Kailua-Kona to Ontario?

    Yes. Cheapflights offers flight deals from Kailua-Kona to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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